If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( r )
r = 0
r = 0
r = 0
r in (-oo:0) U (0:+oo)
-24/r = 4 // - 4
-24/r-4 = 0
-24*r^-1 = 4 // : -24
r^-1 = -1/6
-1 < 0
1/(r^1) = -1/6 // * r^1
1 = -1/6*r^1 // : -1/6
-6 = r^1
r = -6
r = -6
| y=3--1 | | -27x^6+8m^3=0 | | y=3--4 | | y=3--5 | | 110=(r/2)(5t) | | y=3--6 | | y=1-6(3) | | y=1-5(3) | | 2z^2+3z+3=0 | | y=1-4(3) | | y=1-3(3) | | y=1-2(3) | | 4y+4y=7y+5 | | y=1-1(3) | | y=1-0(3) | | 110=(r/2)(t*5) | | f(x)x^2-x-1= | | y=1--1(3) | | .06x+.04(x-4000)=840 | | y=1--3(3) | | 7x+5x+8x= | | 837=27p | | y=1--5(3) | | y=1--6(3) | | (X-3)/2=14 | | y=1--2(3) | | h-67=34 | | y=1--4(3) | | y/4=9 | | (5+x)+4x=95 | | 0.05p+0.07(1600-p)=75 | | y=0(2) |